Research on Synchronous Testing Method of OTN

LI Hong-fa; LIN Yi; HU Chang-jun; XU Yun-bin; LIU Guo-jun

doi:10.13756/j.gtxyj.2018.03.003

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Research on Synchronous Testing Method of OTN

- Research on Synchronous Testing Method of OTN
- Study on Optical communication Issue 3, Pages: 9-12(2018)
- 作者机构：
  
  1. 国网福建省电力有限公司
  2. 中国信息通信研究院
  3. 全球能源互联网研究院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2018.03.003
  CLC： TN929.1
- Published：2018，
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[1]李宏发,林屹,胡昌军,徐云斌,刘国军.光传送网络同步测试方法研究[J].光通信研究,2018(03):9-12.

LI Hong-fa, LIN Yi, HU Chang-jun, et al. Research on Synchronous Testing Method of OTN. [J]. (3):9-12(2018)
[1]李宏发,林屹,胡昌军,徐云斌,刘国军.光传送网络同步测试方法研究[J].光通信研究,2018(03):9-12. DOI： 10.13756/j.gtxyj.2018.03.003.

LI Hong-fa, LIN Yi, HU Chang-jun, et al. Research on Synchronous Testing Method of OTN. [J]. (3):9-12(2018) DOI： 10.13756/j.gtxyj.2018.03.003.

摘要

随着光传送网络/分组增强型光传送网络（OTN/POTN）技术的规模部署应用

OTN/POTN必然要面临承载频率和时间同步信号的问题。文章提出一种基于1588+SyncE同步的现网测试方法

通过在源端OTN/POTN设备上配置额外的光监控信道板卡和时钟接口板

并采用逐点方式对同步信号进行本地环回测试

该方案解决了异地测试基准带来的测量误差问题

同时摆脱了测试源头和测试参考点的限制

可以根据实际需要在OTN/POTN系统的任一节点进行测试

降低了测试成本。

Abstract

With the large-scale deployment of Optical Transport Network/Packet-enhanced Optical Transport Network（OTN/POTN）technology

the problem of bearing frequency and time synchronization signal in OTN/POTN occurs.This paper proposes a test method based on 1588+SyncE synchronous network.Through the configuration of additional Optical Supervisory Channel（OSC）board and clock interface board in source OTN/POTN equipment

and the point by point method was used for the synchronous signal to be tested in a local loopback mode.This scheme solves the problem of measurement error due to remote testing

while removing the restriction of test source and test reference point

and can be tested at any node of the OTN/POTN system according to actual needs

reduce the cost of testing.

关键词

光传送网络同步测试方法

Keywords

OTNsynchronizationtest methods

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